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roger
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can time be stopped ? if so how can it be done ?
i think it would stop AT the speed of light ...scott1 said:According to realtivity if you went faster then the speed of light time would appear to stop.
But I'am not sure if that's what your question is.
I don't think that's what his question.He didn't ask would it be possible to stop time but can it be stoped.Hootenanny said:According to einstein;
[tex]E_{k} = \frac{mc^2}{\sqrt{1-\frac{v^2}{c^2}}} - mc^2[/tex]
If we are traveling at the speed of light the term [itex]\frac{v^2}{c^2}[/itex] is one and hence the denomator of the fraction is zero, leading to the first term becoming infinite. Therefore, to travel at the speed of light would require an infinite amount of energy. That's my understanding anyway.
-Hoot
I think I understand what your asking.Are you asking that time itself stops and everything in the universe seems to stop no matter how fast your going.i mean stops so that it all freezes.
Hootenanny said:According to einstein;
[tex]E_{k} = \frac{mc^2}{\sqrt{1-\frac{v^2}{c^2}}} - mc^2[/tex]
If we are traveling at the speed of light the term [itex]\frac{v^2}{c^2}[/itex] is one and hence the denomator of the fraction is zero, leading to the first term becoming infinite. Therefore, to travel at the speed of light would require an infinite amount of energy. That's my understanding anyway.
-Hoot
roger said:can time be stopped ? if so how can it be done ?
roger said:If the denominator was zero, the fraction would be undefined, as far as I understand.Unless you meant tending to zero
hurk4 said:A photon travels at the speed of light. Coming from the sun it will take 8 minutes to arive at the earth. Maybe in its own reference system (what does that mean in the case of a photon?) time stays zero,
You're absolutely terrible.Isn't that what stop watches are for ?
(ok, silly joke...)
PatPwnt said:Time is stopped for photons. They don't experience time. If you could travel the speed of light, it would take you 0 time to travel any distance.
sweetvirgogirl said:i think it would stop AT the speed of light ...
at a speed faster than light, it would go in reverse direction or something like that
anyway, yeah even I'm not sure in what context you're asking whether time can be stopped
PatPwnt said:Time is stopped for photons. They don't experience time. If you could travel the speed of light, it would take you 0 time to travel any distance.
SinghRP said:Yes, time stops -- virtually.
General Relativity: the time period of an atomic clock is dilated as the intensity of gravitational field increases. So, near a mass of infinitely high mass density, the time period would be infinitely large. That means the time virtually stops. However, nothing is really inifinte, so, time period could not be exactly infinity. (We blame many thing on infinity!)
However, if there is no mass anywhere, ... forget it. That means the clock is not there either. Moot point.
The same holds for an electromagnetic wave. The frequency is less near the mass than at inifilty. That is, wavelength expands, which is red shift. Near a mass of infinitely high density, wavelength of light tends to inifinity. That is, light virtually ceases to exist in waveform but still propagates at c.
Remember:
Frequency * Wavelength = c
Frequency * Time period = 1.
I hope this helps.
SinghRP said:Light traveling faster than light! Imarinary relavistic mass. These are tachyons! I don't think they exist, but who am I to challenge you know whom.
Won't it wonderful if we can create tachyons and harness (use) them. We can see the past! And much more!
The concept of stopping time refers to the ability to pause or freeze the progression of time at a specific point. This can be achieved through various methods and has been a topic of fascination and speculation in science and fiction.
At present, there is no scientific evidence or technology that allows for the complete stopping of time. However, some theories, such as time dilation and the concept of a "time machine", suggest that it may be possible to manipulate time in certain ways.
Some methods that have been proposed for stopping time include using extreme gravitational forces, manipulating the speed of light, and creating a wormhole or black hole. However, these are all theoretical and have not been proven to be possible.
The consequences of stopping time are largely unknown, as it is a hypothetical concept. Some theories suggest that it could lead to paradoxes and disruptions in the fabric of space-time, while others believe it could have no significant impact.
The concept of stopping time is often associated with time travel, as both involve manipulating the progression of time. However, time travel typically refers to the ability to move backwards or forwards in time, while stopping time is focused on pausing it at a specific moment.